19-1077; Rev 0; 9/96
±15kV ESD-Prote c te d, EMC-Com plia nt, 230kbps
RS-232 Se ria l Port for Mode m s
MAX3186
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX3186 is a complete DCE RS-232 serial port
designed to meet the stringent ESD requirements of the
European community. All transmitter outputs and receiv-
er inputs are protected to ±15kV using IEC 1000-4-2
Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact
Discharge, and ±15kV using the Human Body Model.
♦ Enhanced ESD Protection:
±15kV—Human Body Model
±8kV—IEC1000-4-2, Contact Discharge
±15kV—IEC1000-4-2, Air-Gap Discharge
♦ Latchup Free During an ESD Event
♦ 20-Pin SSOP or SO Packages
♦ Guaranteed 230kbps Data Rate
♦ Flow-Through Pinout
The MAX3186 has five RS-232 transmitters, three RS-
232 receivers, and no charge pump, optimizing it for
operation in modem applications. It is guaranteed to
run at data rates up to 230kbps, providing compatibility
with popular software for communicating with personal
computers. Power-supply current is less than 300µA for
I
DD
and I , and less than 1mA for I
.
SS
CC
♦ Complete DCE Serial Port
The MAX3186 is available in an SO package and in the
tiny SSOP that further reduces board space.
________________________Ap p lic a t io n s
______________Ord e rin g In fo rm a t io n
Modems
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
20 SO
ISDN Modems
MAX3186CWP
MAX3186CAP
MAX3186EWP
MAX3186EAP
0°C to +70°C
20 SSOP
20 SO
Instruments
-40°C to +85°C
-40°C to +85°C
Equipment Meeting IEC1000-4-2
20 SSOP
__________Typ ic a l Op e ra t in g Circ u it
__________________P in Co n fig u ra t io n
TOP VIEW
MAX3186
MAX3185
1
2
V
CC
V
20
DD
T1
R1
T1OUT
R1IN
19 T1IN
T2
T3
T4
T5
R1
R2
R3
R2
R3
R4
R5
T1
T2
T3
R1OUT
3
18
17
16
15
14
13
12
RS-232
INTERCONNECTING
CABLE
T2OUT
R2IN
4
T2IN
TTL/CMOS
LOGIC
I/O
TTL/CMOS
LOGIC
I/O
R2OUT
R3OUT
T3IN
5
R3IN
6
T3OUT
T4OUT
T5OUT
7
T4IN
8
T5IN
9
V
SS
10
11 GND
MAX3186
SO/SSOP
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800